Jack



FIG. 1 is a perspective view of a jack in a lowered position, according to the present invention;

FIG. 2 is a first end view of the jack of FIG. 1;

FIG. 3 is a second end view of the jack of FIG. 1;

FIG. 4 is a first side view of the jack of FIG. 1;

FIG. 5 is a second side view of the jack of FIG. 1;

FIG. 6 is a top view of the jack of FIG. 1;

FIG. 7 is a bottom view of the jack of FIG. 1;

FIG. 8 is a perspective view of the jack in a raised position;

FIG. 9 is a first end view of the jack of FIG. 8;

FIG. 10 is a second end view of the jack of FIG. 8;

FIG. 11 is a first side view of the jack of FIG. 8;

FIG. 12 is a second side view of the jack of FIG. 8;

FIG. 13 is a top view of the jack of FIG. 8; and,

FIG. 14 is a bottom view of the jack of FIG. 8.

The broken lines in the drawings depict portions of the jack that form no part of the claimed design 

CLAIM The ornamental design for a jack, as shown and described. 